EP1756402B1 - Dispositif filtre pour un systeme de gaz d'echappement d'un moteur a combustion interne, et procede de fabrication dudit dispositif filtre - Google Patents

Dispositif filtre pour un systeme de gaz d'echappement d'un moteur a combustion interne, et procede de fabrication dudit dispositif filtre Download PDF

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Publication number
EP1756402B1
EP1756402B1 EP05737939A EP05737939A EP1756402B1 EP 1756402 B1 EP1756402 B1 EP 1756402B1 EP 05737939 A EP05737939 A EP 05737939A EP 05737939 A EP05737939 A EP 05737939A EP 1756402 B1 EP1756402 B1 EP 1756402B1
Authority
EP
European Patent Office
Prior art keywords
filter
filter wall
filter device
channels
curvature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP05737939A
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German (de)
English (en)
Other versions
EP1756402A1 (fr
Inventor
Ulrich Eisele
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1756402A1 publication Critical patent/EP1756402A1/fr
Application granted granted Critical
Publication of EP1756402B1 publication Critical patent/EP1756402B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
    • F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0001—Making filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2418—Honeycomb filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/80—Chemical processes for the removal of the retained particles, e.g. by burning
    • B01D46/84—Chemical processes for the removal of the retained particles, e.g. by burning by heating only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/944—Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
    • B28B3/26—Extrusion dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
    • B28B3/26—Extrusion dies
    • B28B3/269—For multi-channeled structures, e.g. honeycomb structures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/0006—Honeycomb structures
    • C04B38/0009—Honeycomb structures characterised by features relating to the cell walls, e.g. wall thickness or distribution of pores in the walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/16—Selection of particular materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/022—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
    • F01N3/0222—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous the structure being monolithic, e.g. honeycombs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20707—Titanium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B01D2258/012—Diesel engines and lean burn gasoline engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
    • B01D2279/30—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for treatment of exhaust gases from IC Engines
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00034—Physico-chemical characteristics of the mixtures
    • C04B2111/00129—Extrudable mixtures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00793—Uses not provided for elsewhere in C04B2111/00 as filters or diaphragms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/10—Exhaust treating devices having provisions not otherwise provided for for avoiding stress caused by expansions or contractions due to temperature variations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/14—Sintered material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/30—Honeycomb supports characterised by their structural details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/30—Honeycomb supports characterised by their structural details
    • F01N2330/34—Honeycomb supports characterised by their structural details with flow channels of polygonal cross section

Definitions

  • the invention relates to a method for producing a filter device for the exhaust system of an internal combustion engine, in which a material is extruded and sintered to form a filter structure comprising mutually immediately adjacent channels having an at least partially common porous filter wall and alternately at the upstream or closed at the downstream end.
  • a method of the type mentioned is from the DE 10130 338 A1 known.
  • a wall-flow surface filter shown there has a plurality of honeycomb-like channels extending in the direction of flow. These are alternately closed at their upstream and downstream ends, so that individual pockets are formed. Between the individual channels, porous filter walls are arranged, through which the exhaust gas flow passes during operation. As a result, soot particles are separated from the exhaust gas and deposited in the form of a filter cake on the upstream surface of the filter walls.
  • the stated object is achieved in a method of the type mentioned in that in the extrusion, the filter wall is at least partially provided with a curvature, wherein a gas is blown.
  • At least one of two neighboring channels is more common Filter wall portion is curved so that it is concave looking from the one channel and the convex looking in the other channel in cross-section.
  • the curvature of the filter wall scored in a plane perpendicular to the longitudinal axis of the channels.
  • the filter wall sections extend concavely from an inlet-side channel and curve convexly from an outlet-side channel, such that the flow cross-section of the outlet-side channel is smaller than that of the inlet-side channel.
  • a larger surface area and a larger flow volume are made available in the inlet-side channels, which can be used for example for the deposition of soot particles and ash and / or a catalytic device for the regeneration of the filter device.
  • the outlet-side channels are correspondingly smaller, so that the overall dimensions of the filter device do not rise or hardly rise.
  • Such a configured filter device thus provides a good filter capacity available at the same time small dimensions.
  • the filter wall of a channel is at least partially curved in the longitudinal direction like a wave.
  • the curvatures which are provided according to the invention for low-stress absorption of thermal expansion, are not generated in a plane transverse to the longitudinal direction of the channels, but in the longitudinal direction of the channels. Accordingly, this mechanical stresses that arise due to temperature gradients in the longitudinal direction, degraded or absorbed.
  • a gas preferably air or nitrogen, is blown.
  • the advantages according to the invention are particularly concise if the filter walls are produced by sintering and comprise ZrO 2 .
  • the filter walls preferably consist of Mg- or Y-partially stabilized ZrO 2 .
  • This material is resistant to alkaline earths even at high temperatures (Ca and Mg are incorporated into the lattice) and alkalis (there is no low-melting phase in the ZrO 2 -Na 2 O system). A high temperature corrosion does not take place.
  • Another advantage of this material is its high mechanical strength and the fact that it has a similar thermal expansion coefficient as steel. Since the filter structure is usually housed in a housing made of steel, therefore, no thermal expansion stresses arise during operation between the filter structure and such a housing. Although the thermal expansion of ZrO 2 is higher than in other materials previously used for filter structures; However, due to the constructive design according to the invention, this does not lead to unacceptable stresses in the structure.
  • the porosity of the filter wall is preferably adjusted by an admixture of an organic pore image, in particular a fine powder of at least one thermoplastic, of at least one duroplastic or graphite and / or of an amorphous carbon over its concentration and / or size distribution.
  • an organic pore image in particular a fine powder of at least one thermoplastic, of at least one duroplastic or graphite and / or of an amorphous carbon over its concentration and / or size distribution.
  • Such pore images burn out during sintering. Unlike the incomplete sintering of a coarse starting powder, this gives the freedom to optimize the ceramic structure in terms of mechanical strength, for example to produce a particularly fine-grained microstructure. This, too, ultimately benefits the service life of the filter device according to the invention.
  • An internal combustion engine carries in FIG. 1 the reference numeral 10.
  • the combustion exhaust gases are discharged through an exhaust system 12, which comprises an exhaust pipe 14 and a filter device 16 designed as a particle filter.
  • the exhaust system 12 may also include other components, such as catalysts, etc., but in FIG. 1 not shown.
  • the particulate filter 16 comprises a housing 18 made of steel and a filter structure 20 accommodated in the housing 18. The exact construction will be described in detail below.
  • the inlet channels 24 and the outlet channels 26 are bounded by porous filter walls 32 of Y-partially stabilized ZrO 2 ( FIG. 4 ), the in FIG. 4 visible filter walls 32 have portions 32a that define both a portion of an inlet channel 24 and a portion of an outlet channel 26.
  • the others in FIG. 4 Drawn filter wall sections 32b to 32d limit only one inlet channel 24.
  • the respective filter wall sections 32a to 32d are in the in FIG. 4 shown sectional view from an inlet channel 24 from concave and viewed from an outlet channel 26 convex curved. This results in evenly distributed "grid points" P of the filter structure 20, that the free cross-sectional area of an outlet channel 24 is smaller than the free cross-sectional area of an inlet channel 24.
  • the inlet channel 24 facing a free surface of a Filter wall 32 is larger than that facing an outlet channel 26.
  • this blank 50 is pre-sintered in a sintering furnace 52 at 600 ° C to 1100 ° C, resulting in a pre-greenling 54. This is then immersed in a bath 56 with an oxide catalytically active material, which gives the actual green body 58. In an embodiment not shown, this step is omitted. In an oven 60, this is sintered, wherein the catalytically active material forms a mixed crystal with the ZrO 2 , and thereby a graded transition from the surface of a filter wall 32 to the base material ZrO 2 forms.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geometry (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Filtering Materials (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Catalysts (AREA)

Claims (7)

  1. Procédé pour fabriquer un dispositif de filtre (16) pour le système de gaz d'échappement (12) d'un moteur à combustion interne (10), dans lequel un matériau (38, 40) est extrudé (46) puis fritté (60) de telle sorte qu'une structure de filtre (20) soit obtenue, laquelle comprend des canaux (24, 26) immédiatement adjacents les uns aux autres, qui présentent une paroi de filtre (32) poreuse au moins en partie commune et qui sont fermés (28, 30) en alternance aux extrémités amont ou aval, la paroi du filtre (32) étant au moins en partie dotée d'une courbure pendant l'extrusion (46), caractérisé en ce que dans les canaux adjacents (24, 26), pendant l'extrusion, on souffle (48) en alternance un gaz, de préférence de l'air ou de l'azote, de sorte que la paroi du filtre (32) soit au moins en partie courbée sous forme ondulée dans la direction longitudinale.
  2. Procédé selon la revendication 1, caractérisé en ce que l'extrudeuse (46) est réalisée de telle sorte qu'au moins une portion de paroi de filtre (32a) commune pour deux canaux adjacents (24, 26) ait une section transversale de courbure concave, vue depuis un canal (24), et de courbure convexe, vue depuis l'autre canal (26).
  3. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que pour la fabrication de la paroi du filtre (32), on utilise du ZrO2.
  4. Procédé selon la revendication 3, caractérisé en ce qu'avant l'opération de frittage proprement dite (60), la structure du filtre (20) est trempée (56) au moins en partie dans un matériau à oxydation catalytique (36), notamment du CeO2 et/ou du TiO2 et/ou du Sc2O3.
  5. Procédé selon la revendication 4, caractérisé en ce qu'avant la trempe (56), on effectue un pré-frittage (52) à une température d'environ 600 à 1100°C.
  6. Procédé selon l'une quelconque des revendications 3 à 5, caractérisé en ce que le ZrO2 est dopé avec du CeO2 et/ou du TiO2 et/ou du Sc2O3.
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la porosité de la paroi du filtre (32) lors du mélange (42) d'un agent formeur de pores organique (40), notamment d'une fine poudre constituée d'au moins un thermoplastique, d'au moins un duroplastique, de graphite, et/ou d'un carbone amorphe, est ajustée en termes de concentration et/ou de granulométrie.
EP05737939A 2004-06-08 2005-04-25 Dispositif filtre pour un systeme de gaz d'echappement d'un moteur a combustion interne, et procede de fabrication dudit dispositif filtre Not-in-force EP1756402B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004027818A DE102004027818A1 (de) 2004-06-08 2004-06-08 Filtereinrichtung für ein Abgassystem einer Brennkraftmaschine, sowie Verfahren zum Herstellen einer solchen Filtereinrichtung
PCT/EP2005/051840 WO2005121513A1 (fr) 2004-06-08 2005-04-25 Dispositif filtre pour un systeme de gaz d'echappement d'un moteur a combustion interne, et procede de fabrication dudit dispositif filtre

Publications (2)

Publication Number Publication Date
EP1756402A1 EP1756402A1 (fr) 2007-02-28
EP1756402B1 true EP1756402B1 (fr) 2009-07-22

Family

ID=34966005

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05737939A Not-in-force EP1756402B1 (fr) 2004-06-08 2005-04-25 Dispositif filtre pour un systeme de gaz d'echappement d'un moteur a combustion interne, et procede de fabrication dudit dispositif filtre

Country Status (4)

Country Link
EP (1) EP1756402B1 (fr)
AT (1) ATE437297T1 (fr)
DE (2) DE102004027818A1 (fr)
WO (1) WO2005121513A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202006007876U1 (de) * 2006-05-15 2007-09-20 Bauer Technologies Gmbh Optimierung von zellulären Strukturen, insbesondere für die Abgasreinigung von Verbrennungsaggregaten und andere Anwendungsbereiche
WO2008129671A1 (fr) 2007-04-17 2008-10-30 Ibiden Co., Ltd. Nid d'abeille porteur de catalyseur et processus de production de ce nid d'abeille
DE102014226607B4 (de) * 2014-12-19 2019-02-21 Technische Universität Dresden Monolithischer statischer Mischer und/oder katalytisch wirkendes Element sowie Verfahren zur Herstellung
KR101745169B1 (ko) 2015-11-04 2017-06-08 현대자동차주식회사 머플러 통합형 매연저감장치

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4276071A (en) * 1979-12-03 1981-06-30 General Motors Corporation Ceramic filters for diesel exhaust particulates
JPS6168141A (ja) * 1984-09-11 1986-04-08 Toyota Motor Corp 排気ガス浄化用モノリス触媒担体およびその製造方法
FR2628655B1 (fr) * 1988-03-16 1990-07-20 Pro Catalyse Support de catalyseur et catalyseur pour le traitement des gaz d'echappement des moteurs a combustion interne et procede de fabrication de ceux-ci
JP3784718B2 (ja) * 1999-08-30 2006-06-14 日本碍子株式会社 波壁ハニカム構造体及びその製造方法
DE10130338A1 (de) 2001-06-26 2003-04-24 Forschungszentrum Juelich Gmbh Dieselrussfilter mit einem feindispers verteiltem Dieselrusskatalysator
FR2840545B1 (fr) * 2002-06-07 2008-07-04 Saint Gobain Ct Recherches Corps filtrant pour la filtration de particules contenues dans les gaz d'echappement d'un moteur a combustion interne
US7326270B2 (en) * 2002-09-13 2008-02-05 Ibiden Co., Ltd. Filter

Also Published As

Publication number Publication date
EP1756402A1 (fr) 2007-02-28
DE102004027818A1 (de) 2006-01-05
DE502005007753D1 (de) 2009-09-03
ATE437297T1 (de) 2009-08-15
WO2005121513A1 (fr) 2005-12-22

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